According to an almanac, 60% of adult smokers started smoking before turning 18 years old. (a) If 400 adult smokers are randomly selected, how many would we expect to have started smoking before turning 18 years old? (b) Would it be unusual to observe 340 smokers who started smoking before turning 18 years old in a random sample of 400 adult smokers? Why? (a) We would expect about adult smokers to have started smoking before turning 18 years old. (Type a whole number.)
According to an almanac, 60% of adult smokers started smoking before turning 18 years old. (a) If 400 adult smokers are randomly selected, how many would we expect to have started smoking before turning 18 years old? (b) Would it be unusual to observe 340 smokers who started smoking before turning 18 years old in a random sample of 400 adult smokers? Why? (a) We would expect about adult smokers to have started smoking before turning 18 years old. (Type a whole number.)
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.5: Interpreting Data
Problem 1C
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